内容

目次

1 A prelude on wetting 1.1 Homogeneous surfaces – Young–Laplace equation & Young–Dupré equation 1.2. Wetting in external fields – gravity & electric fields (leaky dielectric model) 1.3 Nano–scale wetting: effective interface potential 1.4 Wetting of heterogeneous surfaces – c.a. hysteresis & heterogeneity; Gibbs pinning criterion; metastability; Wenzel, Cassie–Baxter eq., 1.5 Dynamic wetting 2 From electrocapillarity to electrowetting – a historic perspective 2.1 Lippmann's experiments; Lippmann equation in physical chemistry 2.2 Early applications (EC electrometer) 2.3 Early electrowetting (Frumkin) 3 Basic principles of modern electrowetting 3.1 Electrowetting on dielectric: 3.1.1 Derivation of EW equation 3.1.2 Effective surface tension picture 3.1.3 Origin of the minus sign 3.1.4 From Debye layer capacitance to dielectric layer: where is the energy (gain)? 3.1.5 AC vs. DC electrowetting 3.2 Microscopic picture 3.2.1 Local electric field & modified Laplace eq. 3.2.2 Consequences: diverging local fields 3.2.3 Reconciliation micro–macro 3.3 c.a. saturation: the big mystery of EW 4 Classical wetting phenomena controlled by electrowetting 4.1 Morphology transition on structured surfaces (wetting of fibers; EW of superhydrophobic surfaces) 4.2 Drop actuation by wettability gradients 4.3 Drop dynamics (oscillations, relaxation times, damped vs. overdamped) 4.4 Contact line dynamics (in air – in oil) 5 Numerical simulations of electrowetting (?) 6 Electrowetting materials 6.1 Insulators (dielectric breakdown; charge trapping; self–healing) 6.2 Liquids (small ions vs. large ions; colloidal stability; solubility (water in oil); surfactants) 7 Applications of EW 7.1 Lab–on–a–Chip devices 7.1.1 Classical device design & drop manipulation 7.1.2 Systems integration (bus architecture; programming) 7.1.3 Bio–challenges (surfactants; protein adsorption; cells) 7.1.4 Combined EW + detection (SPR, MALDI) 7.1.5 Electrowetting in two–phase flow microfluidics 7.2 Optoelectrowetting 7.2.1 Adaptive lenses 7.2.2 Autofocus systems 7.2.3 Beam stearing 7.2.4 Optical switches 7.2.5 Diffractive elements 7.2.6 Lens arrays 7.3 Electrowetting displays 7.3.1 Basics of display technology 7.3.2 The liquavista design 7.3.3 Cincinatti design 8 The future of EW 8.1 Novel applications 8.1.1 Reverse electrowetting: Energy harvesting systems 8.1.2 Reserve batteries & supercapacitor? 8.1.3 MALDI for EW 8.1.4 Reversible sponge 8.1.5 Mechanical actuators 8.2 Breaking the limits: nano EW; beyond c.a. hysteresis